Slide-valve.



APPLICMION ELLJMAP.. m; 1912 Patented Aug. 4,1914.

HENNENG- VJ'. LUNDQUEST, Ol ST. LOUIS, MISSOURI.

sinne-VALVE.

speieanon uf Letters Patent,

Patented Auw. 4, 1914.

Application led Maren 19, 1913. Serial No. 755,449.

F5 idiom 'it may concern if; known that L HENNING lV. LUND- onis'r, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain new and useful Im* movements in Slide-Valvesganclldo hereby deelt5 n. the following to .be a fullE clear, and description of the invention, such as willennlile others skilled in the art to which it @pertains to make and use the saine.

" ''lis invention relates to new and useful by the use oie suoli .liet the heeft. Coming i ine metal causes the saine to Warp, thus the proper seatingr et at times insured. Anringe oi me puppet valve is gatlieiing'upon the same will proper seating and cause the aineduzliin the cylinder to es- ,f losing considerable power from ration of the engine. `Dieet of l invention is to eliminate incoir-feniences caused by 3 valve :incl substitute :i

sie of carbon will be t ei? invention to li Will-1 nix-,rate similar type of pu )pet vulve und e :ulm-fitug sini tlie'puppet e the litilirrylslide vulve nd other objects in View, my invention iu t-lio foland accompanying smleml sfu-Howl View.

' casing cool.

is a transverse sectional View teken on line 2-2 of Fig. l.; Fig. 3 is a detail perspective View of the vulve block used in my improved vulve; und Fig. el is a View of the valve stem.

Referring to the drawings by characters 01"' reference, l indicates the wall of an engine. cylinder which is surrounded by the usual water jacket 2, and is provided Wit-li tlie usual opening 3 to receive the spark plug. A piston 4, having a connecting rofl connected to the piston 6 and the usual piston rings 7 is slidably mounted Within the cyl-inder of the motor.

A port 8 is provided at one side of the cylder and is formed .integral with the side Walls thereof. This port 8 is provided with the enlarged openingJ 9, to which the uniniold of the niotoi is adapted to be attached. lThe Wells of tlie port are preferably water jnclicted, as indicated at 1G, to keep the valve and the interior mills ll of the valve This interior Well beveled, us shown nt l2, to forni the enlarged opening 13, the bevel l2 occurring :it substnntiullgY one'tliircl the distance of tlie leiwtli of the "faire sent. .i bevel ifi is foi-ined :it the lower extremity of the valve sent und tapers inwardly toward the bottoni. The lower end of the casingis extended, ns shown :1t-15, in the usunl manner :1nd is surrounded by :i coil spring 1G which is adapted to co-uct with the annular {lmige l? formed on the vulve stein 18.

rilie usual cani shaft Q0 is opernbly connected with the crank sluilt of the niotor und adapted to operate the. cum 2. which works against the roller i9 on the Vertical sliding` rod 23. This rod 9,3 is adapted to slide tlirougli the slr-ere Qi, which is :ittnclied to tile cylinder nl' tlie motor. The upg er end of the vertimxl slidingrod 2?) is provided u'itli :i flange 25 und lms n extending ther-cinto for u short distance which is internally scrou' threaded. and adapted lo receive u soreu threaded bolt 1) that is provided with n flut lic-nd i9. The liend nf this holtlf) adapted to engage tli'e lower terminal ot' the stein 18 und 'force the stein upuni-illy during` lie operation of sliding the salvia The body'pm'tion oil tlm bloei; or vulvet nadir-:sied luy ille 'muncrul i243. is preferably lnporml nl ils louer (mi :ist indiiuml :il 27. 'lflus wall llwu oxlvnfl-z up\\';xwil\'. :n: :inw n ul LW. la within :i .short elsl'zlmv l'lum ils; u| [wr o.\'t1'oznly7 whore i! again (npn'lef out Wardly, as shown at 29, to form the enlarged head portion 30, which is adapted to Workv Within the opening`13 ,of the valve casing. Intermediate the ends of the body portion 2G of the valve I preferably provide an elongated slot 31, which is adapted to register with the port 9 in the valve casing, and

thereby open the port for the'ingress or egress of gases from the cylinder. Between the lower end of the valve of this body portion 26- and the slot 31, I preferably provide an aperture in which the screw 3Q is adapted to be inserted, this screw 32 acting as a connection for the valve stem 18, which stem i8 is provided at its upper extremity Withl the enlarged portion 33.

The up'per en d of the opening 13 is closed by a detachable plate 34 that is mounted Within the opening 13 and secured in posi- -tion by means of bolts or other suitable fastening means 35 that are inserted lthrough oifset lugs 36 formed integral With the plate and have threaded engagement with the cylinder. An opening 37 is formed through this plate 34 and registers with the opening 13 and the amosphere so that accumulation ofconiprenssion Within the enlargedportion 13 of the valve seat is prevented and the possibility of the valve sticking is eliminated.

In operation the block is placedv in pgsition in the valve casing and connected-up with the cani, as clearly described in the foregoing. It Will be seen that when the cam comes up it will forcel the block up- Wardly and bring the recess 3l into registration witli the recess 8, thereby opening the valve for use. Upon the cam descending,

the spring 16 will force the valve downwardly and prevent any escape of gases from ytlievcylinde lVhile in -the foregoing I have shown and described the preferred embodiment of my -invention, I Wish it to be understood that I shape of the recess, means to move said` block vertically, the upper wall of the recess provided with a port communicating with the atmosphere' to prevent the accumula.-

tion of pressure against the enlarged endy of the block.

2. The combination with the cylinder 0f Aan internal combustion engine of a valve caswith the recess, said recess enlarged at itsupper terminal, a block .slidably mounted within the recess, said block enlarged at its upper terminal to conform to the shape ofv the recess and having an aperture intermediate its ends adapted to register With the ports, means for reciprocating the block whereby the port is brought into registration with the port in the casing and means for preventing accumulation of pressure adjacent the enlarged end of said block Within the enlarged portion of said recess.

3. The combination with the cylinder of an internal combustion engine, -of a Vvalve casing carried by said cylinder and having a recess therein, a block slidablyv mounted within the'recess, said block having its upper terminal enlarged, said 4recess having its upper terminal enlarged to conform to the shape of said block, a port extending transversely through the casing and communicating with the recess, an aperture intermediate the ends of said block adapted to regis- 'ter 'with the port,'the upper Wall of the recess having a port therein communicating with the atmosphere to prevent the accumulation of pressure against the enlarged end of the block and means for reciprocating said block.

4. The combination with the cylinder of .an internal combustion engine of a valve casingcarried thereby and having a recess therein', said recess enlarged at its upper terminal and reducedv at its lower terminal, a block slidably mounted within the recess and having an aperture therein intermediate the ends thereof, said block enlarged adje cent its upper terminal and reduced at its lower terminal to conform to the shape of said recess and means for preventing tlie'accumulatioii of pressure against the enlarged end of said block within the enlarged p0rtion of the recess.

lIn testimony whereof I ailix my in presence of two Witnesses.

HENN IN G W. LUN DQUIST. i lVitnesses:

J. F. MURPHY,

EMIL H. SCREUN.

signature 

